Trace number 366861

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.16OPT6 0.005998 0.00853899

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/
bounded_golomb_rulers/normalized-bogr_4.opb
MD5SUMe07d1b5f59078d7e9ac49c5c9d354a5d
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark6
Best CPU time to get the best result obtained on this benchmark0.003998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6
Optimality of the best value was proved YES
Number of variables38
Total number of constraints44
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints43
Minimum length of a constraint1
Maximum length of a constraint18
Number of terms in the objective function 5
Biggest coefficient in the objective function 8
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 21
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 32
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 114
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/366861-1177067612/instance-366861-1177067612.opb
0.00/0.00	c File size is 4199 bytes.
0.00/0.00	c Highest Coefficient sum: 114
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 38 Constr: 44 1/0/43 Lit: 542 Watch. Lit: 205
0.00/0.00	c Obj. Vars: 5 (13.1579 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     36       43      541   12      333    1082      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.00	o 16	0.002
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        7     36       51      603   11      417    1090      8   3500 0.00
0.00/0.00	o 8	0.002
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c       11     36       56      644   11      402    1090     13   5500 0.00
0.00/0.00	o 6	0.002
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c       19     29       65      671   10      412    1082     22   9500 0.00
0.00/0.00	v -x1 -x2 -x3 -x4 x38 x5 -x6 -x7 -x8 -x14 x15 -x16 -x17 -x37 -x9 -x10 -x11 -x12 -x13 -x36 -x35 -x34 x33 x32 -x31 -x30 x29 -x28 x27 x26
0.00/0.00	v x25 x24 x23 x22 x21 x20 x19 x18
0.00/0.00	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.00/0.00	c    3       19      9       69       65      671     22   9500 0.00
0.00/0.00	c Objective: 6
0.00/0.00	s OPTIMUM FOUND
0.00/0.00	c Total time: 0.002 s

Verifier Data (download as text)

OK	6

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node54/watcher-366861-1177067612 -o ROOT/results/node54/solver-366861-1177067612 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/366861-1177067612/instance-366861-1177067612.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 1.01 1.00 3/66 3162
/proc/meminfo: memFree=1606904/2055920 swapFree=4182036/4192956
[pid=3162] ppid=3160 vsize=19556 CPUtime=0
/proc/3162/stat : 3162 (bsolo3.0.16) R 3160 3162 2382 0 -1 4194304 367 0 0 0 0 0 0 0 18 0 1 0 154135691 20025344 335 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 2254459 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3162/statm: 4889 336 282 324 0 3956 0

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.00853899
CPU time (s): 0.005998
CPU user time (s): 0.003999
CPU system time (s): 0.001999
CPU usage (%): 70.2425
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.003999
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 407
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Fri Apr 20 11:13:32 UTC 2007

IDJOB= 366861
IDBENCH= 2933
IDSOLVER= 163
FILE ID= node54/366861-1177067612

PBS_JOBID= 4640235

Free space on /tmp= 66336 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/bounded_golomb_rulers/normalized-bogr_4.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/366861-1177067612/instance-366861-1177067612.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-366861-1177067612 -o ROOT/results/node54/solver-366861-1177067612 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/366861-1177067612/instance-366861-1177067612.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  e07d1b5f59078d7e9ac49c5c9d354a5d

RANDOM SEED= 626327088

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1607312 kB
Buffers:         35912 kB
Cached:         340096 kB
SwapCached:       3840 kB
Active:          87160 kB
Inactive:       299168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1607312 kB
SwapTotal:     4192956 kB
SwapFree:      4182036 kB
Dirty:            4392 kB
Writeback:           0 kB
Mapped:          16276 kB
Slab:            48168 kB
Committed_AS:  2164780 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66336 MiB

End job on node54 on Fri Apr 20 11:13:32 UTC 2007